Having lived through such a scenario twice now, I will tell you that you'll need to be able to take a much more hands-off approach. An architect needs information to make decisions, but should not be mucking about in the systems. To be effective, you should either have read-only access to gather the information you need to do your job, or have a very good working relationship with the various delivery staff to provide you ad-hoc info about the environment.
Of course, the ideal situation would be to position the dynamic information that you need to be available automatically via some reporting engines, removing the need for the access or constantly bothering administrators, but my experience is that setting that type of thing up often is more complex and fraught with hurdles than simply bugging someone to get you the information.